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Type:
Bug
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Resolution: Fixed
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Priority:
Major - P3
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None
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Affects Version/s: None
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Component/s: None
Since we upgraded Realm from 10.10.1 => 10.13.0, we have experienced a big drop in stability on iOS and have been hit by what appears to be native memory management issues. Our crash reporting tool (Bugsnag) reports that the iOS app session stability dropped from ~ 99% to ~ 90%. We didn't update any other dependencies (or made any native code changes) in the release where we updated Realm and started seeing these issues. This is what the top crashes looked like with Realm 10.13.0:
Then we tried upgrading Realm from 10.13.0 => 10.16.0 (again without making changes to other app dependencies or making native code changes) but unfortunately the session stability did not improve. This is what the top crashes look like with Realm after the Realm upgrade to 10.16.0 (sorry about the non-symbolicated traces):
Both app versions with Realm 10.13.0 and 10.16.0 show realm::NoSuchTable and realm::KeyNotFound crashes. However, the most frequently reported crash comes in the form of a more general SIGABRT error report which it's my understanding could be rooted in any native module. Here's an example stack trace from the reported SIGABRT crash:
CrashReporter Key: 6d45566d1ac905693d54683d15c5898bf1c38050 Hardware Model: iPhone12,5 Process: driversnote Identifier: com.driversnote.driversnote Version: 4.4.0 Role: Background OS Version: iOS 15.4.1 SIGABRT: 0 libsystem_kernel.dylib ___pthread_kill 1 libsystem_pthread.dylib _pthread_kill 2 libsystem_c.dylib _abort [...] 21 JavaScriptCore JSC::JSCallbackObject<JSC::JSNonFinalObject>::getOwnPropertySlot(JSC::JSObject*, JSC::JSGlobalObject*, JSC::PropertyName, JSC::PropertySlot&) 22 JavaScriptCore JSC::JSCallbackObject<JSC::JSNonFinalObject>::getOwnPropertySlotByIndex(JSC::JSObject*, JSC::JSGlobalObject*, unsigned int, JSC::PropertySlot&) 23 JavaScriptCore _llint_slow_path_get_by_val 24 JavaScriptCore _llint_function_for_construct_arity_checkTagGateAfter 25 JavaScriptCore _llint_function_for_construct_arity_checkTagGateAfter 26 JavaScriptCore _llint_function_for_construct_arity_checkTagGateAfter 27 JavaScriptCore _llint_function_for_construct_arity_checkTagGateAfter 28 JavaScriptCore _llint_function_for_construct_arity_checkTagGateAfter 29 JavaScriptCore _llint_function_for_construct_arity_checkTagGateAfter 30 JavaScriptCore _llint_function_for_construct_arity_checkTagGateAfter 31 JavaScriptCore _llint_function_for_construct_arity_checkTagGateAfter 32 JavaScriptCore _llint_function_for_construct_arity_checkTagGateAfter 33 JavaScriptCore _llint_function_for_construct_arity_checkTagGateAfter 34 JavaScriptCore _llint_function_for_construct_arity_checkTagGateAfter 35 JavaScriptCore _llint_function_for_construct_arity_checkTagGateAfter 36 JavaScriptCore _llint_function_for_construct_arity_checkTagGateAfter 37 JavaScriptCore _llint_function_for_construct_arity_checkTagGateAfter 38 JavaScriptCore _llint_function_for_construct_arity_checkTagGateAfter 39 JavaScriptCore _llint_function_for_construct_arity_checkTagGateAfter 40 JavaScriptCore _llint_function_for_construct_arity_checkTagGateAfter 41 JavaScriptCore _llint_function_for_construct_arity_checkTagGateAfter 42 JavaScriptCore _llint_function_for_construct_arity_checkTagGateAfter 43 JavaScriptCore _llint_function_for_construct_arity_checkTagGateAfter 44 JavaScriptCore _llint_function_for_construct_arity_checkTagGateAfter 45 JavaScriptCore _llint_function_for_construct_arity_checkTagGateAfter 46 JavaScriptCore _llint_function_for_construct_arity_checkTagGateAfter 47 JavaScriptCore _llint_function_for_construct_arity_checkTagGateAfter 48 JavaScriptCore _llint_function_for_construct_arity_checkTagGateAfter 49 JavaScriptCore _llint_function_for_construct_arity_checkTagGateAfter 50 JavaScriptCore _llint_function_for_construct_arity_checkTagGateAfter 51 JavaScriptCore _llint_function_for_construct_arity_checkTagGateAfter 52 JavaScriptCore _llint_function_for_construct_arity_checkTagGateAfter 53 JavaScriptCore _llint_function_for_construct_arity_checkTagGateAfter 54 JavaScriptCore _llint_function_for_construct_arity_checkTagGateAfter 55 JavaScriptCore _llint_function_for_construct_arity_checkTagGateAfter 56 JavaScriptCore _llint_function_for_construct_arity_checkTagGateAfter 57 JavaScriptCore _vmEntryToJavaScriptTrampoline 58 JavaScriptCore JSC::Interpreter::executeCall(JSC::JSGlobalObject*, JSC::JSObject*, JSC::CallData const&, JSC::JSValue, JSC::ArgList const&) 59 JavaScriptCore JSC::boundThisNoArgsFunctionCall(JSC::JSGlobalObject*, JSC::CallFrame*) 60 JavaScriptCore _llint_function_for_construct_arity_checkTagGateAfter 61 JavaScriptCore _llint_function_for_construct_arity_checkTagGateAfter 62 JavaScriptCore _llint_function_for_construct_arity_checkTagGateAfter 63 JavaScriptCore _llint_function_for_construct_arity_checkTagGateAfter 64 JavaScriptCore _vmEntryToJavaScriptTrampoline 65 JavaScriptCore JSC::Interpreter::executeCall(JSC::JSGlobalObject*, JSC::JSObject*, JSC::CallData const&, JSC::JSValue, JSC::ArgList const&) 66 JavaScriptCore JSC::boundThisNoArgsFunctionCall(JSC::JSGlobalObject*, JSC::CallFrame*) 67 JavaScriptCore _llint_function_for_construct_arity_checkTagGateAfter 68 JavaScriptCore _llint_function_for_construct_arity_checkTagGateAfter 69 JavaScriptCore _llint_function_for_construct_arity_checkTagGateAfter 70 JavaScriptCore _llint_function_for_construct_arity_checkTagGateAfter 71 JavaScriptCore _llint_function_for_construct_arity_checkTagGateAfter 72 JavaScriptCore _llint_function_for_construct_arity_checkTagGateAfter 73 JavaScriptCore _llint_function_for_construct_arity_checkTagGateAfter 74 JavaScriptCore _llint_function_for_construct_arity_checkTagGateAfter 75 JavaScriptCore _llint_function_for_construct_arity_checkTagGateAfter 76 JavaScriptCore _llint_function_for_construct_arity_checkTagGateAfter 77 JavaScriptCore _vmEntryToJavaScriptTrampoline 78 JavaScriptCore JSC::Interpreter::executeCall(JSC::JSGlobalObject*, JSC::JSObject*, JSC::CallData const&, JSC::JSValue, JSC::ArgList const&) 79 JavaScriptCore JSC::boundThisNoArgsFunctionCall(JSC::JSGlobalObject*, JSC::CallFrame*) 80 JavaScriptCore _llint_function_for_construct_arity_checkTagGateAfter 81 JavaScriptCore _llint_function_for_construct_arity_checkTagGateAfter 82 JavaScriptCore _llint_function_for_construct_arity_checkTagGateAfter 83 JavaScriptCore _llint_function_for_construct_arity_checkTagGateAfter 84 JavaScriptCore _llint_function_for_construct_arity_checkTagGateAfter 85 JavaScriptCore _llint_function_for_construct_arity_checkTagGateAfter 86 JavaScriptCore _llint_function_for_construct_arity_checkTagGateAfter 87 JavaScriptCore _llint_function_for_construct_arity_checkTagGateAfter 88 JavaScriptCore _llint_function_for_construct_arity_checkTagGateAfter 89 JavaScriptCore _llint_function_for_construct_arity_checkTagGateAfter 90 JavaScriptCore _llint_function_for_construct_arity_checkTagGateAfter 91 JavaScriptCore _llint_function_for_construct_arity_checkTagGateAfter 92 JavaScriptCore _llint_function_for_construct_arity_checkTagGateAfter 93 JavaScriptCore _llint_function_for_construct_arity_checkTagGateAfter 94 JavaScriptCore _llint_function_for_construct_arity_checkTagGateAfter 95 JavaScriptCore _llint_function_for_construct_arity_checkTagGateAfter 96 JavaScriptCore _llint_function_for_construct_arity_checkTagGateAfter 97 JavaScriptCore _llint_function_for_construct_arity_checkTagGateAfter 98 JavaScriptCore _llint_function_for_construct_arity_checkTagGateAfter 99 JavaScriptCore _llint_function_for_construct_arity_checkTagGateAfter 100 JavaScriptCore _llint_function_for_construct_arity_checkTagGateAfter 101 JavaScriptCore _llint_function_for_construct_arity_checkTagGateAfter 102 JavaScriptCore _vmEntryToJavaScriptTrampoline 103 JavaScriptCore JSC::Interpreter::executeCall(JSC::JSGlobalObject*, JSC::JSObject*, JSC::CallData const&, JSC::JSValue, JSC::ArgList const&) 104 JavaScriptCore JSC::boundThisNoArgsFunctionCall(JSC::JSGlobalObject*, JSC::CallFrame*) 105 JavaScriptCore _llint_function_for_construct_arity_checkTagGateAfter 106 JavaScriptCore _vmEntryToJavaScriptTrampoline 107 JavaScriptCore JSC::Interpreter::executeCall(JSC::JSGlobalObject*, JSC::JSObject*, JSC::CallData const&, JSC::JSValue, JSC::ArgList const&) 108 JavaScriptCore JSC::boundThisNoArgsFunctionCall(JSC::JSGlobalObject*, JSC::CallFrame*) 109 JavaScriptCore _vmEntryToNative 110 JavaScriptCore JSC::Interpreter::executeCall(JSC::JSGlobalObject*, JSC::JSObject*, JSC::CallData const&, JSC::JSValue, JSC::ArgList const&) 111 JavaScriptCore JSC::profiledCall(JSC::JSGlobalObject*, JSC::ProfilingReason, JSC::JSValue, JSC::CallData const&, JSC::JSValue, JSC::ArgList const&) 112 JavaScriptCore _JSObjectCallAsFunction [...] 119 CoreFoundation ___CFRUNLOOP_IS_CALLING_OUT_TO_A_BLOCK__ 120 CoreFoundation ___CFRunLoopDoBlocks 121 CoreFoundation ___CFRunLoopRun 122 CoreFoundation _CFRunLoopRunSpecific 123 driversnote 0x100339374 (0x100339270 + 260) (driversnote) 124 Foundation ___NSThread__start__ 125 libsystem_pthread.dylib __pthread_start
Here are a few crash reports retrieved through XCode which mention Realm in the stack trace - they are all from the app version which uses realm v. 10.16.0:
2022-04-23_11-24-19.2673_-0500-2fd0a5349d21e8624bedea7cadd05249a7ef257e.txt
2022-04-24_09-49-16.5911_+0800-5d54e08447eada3d190a81ad0583993fbed9e685.txt
2022-04-24_11-06-35.7773_+0800-1dc9a5cb656aa8f4597272dea4f4e2fd2fe4b7d3.txt
2022-04-24_11-51-44.3257_-0500-e80fd319087391b20fa73e248a7f66e80b34afa0.txt
2022-04-24_13-26-48.1968_+0200-00cc3ee3534c38956fa8190f226d1dd5d1a04af5.txt
2022-04-25_10-50-14.0976_+0200-10370900cb31f02fbe46c189a186c85709ec1532.txt
We realise that this issue is somewhat vague but unfortunately we haven't yet found a way to reproduce the crashes. Our hope is that some of the attached crash reports will be meaningful for the Realm team and either point to a Realm problem - or to something which we could be doing wrong but which only causes problems in these new realm versions.
We use Realm with react-native v. 0.65.2 (without Hermes)
- is related to
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RJS-1700 Meta-ticket: Memory Corruption
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- Closed
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